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netdevsim: register couple of devlink params

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Register couple of devlink params, one generic, one driver-specific.
Make the values available over debugfs.

Example:
$ echo "111" > /sys/bus/netdevsim/new_device
$ devlink dev param
netdevsim/netdevsim111:
  name max_macs type generic
    values:
      cmode driverinit value 32
  name test1 type driver-specific
    values:
      cmode driverinit value true
$ cat /sys/kernel/debug/netdevsim/netdevsim111/max_macs
32
$ cat /sys/kernel/debug/netdevsim/netdevsim111/test1
Y
$ devlink dev param set netdevsim/netdevsim111 name max_macs cmode driverinit value 16
$ devlink dev param set netdevsim/netdevsim111 name test1 cmode driverinit value false
$ devlink dev reload netdevsim/netdevsim111
$ cat /sys/kernel/debug/netdevsim/netdevsim111/max_macs
16
$ cat /sys/kernel/debug/netdevsim/netdevsim111/test1

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko
2019-08-09 13:05:12 +02:00
committed by David S. Miller
parent 6e5ee48339
commit 150e8f8a1b
2 changed files with 73 additions and 1 deletions
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2
drivers/net/netdevsim/netdevsim.h
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@@ -158,6 +158,8 @@ struct nsim_dev {
struct list_head port_list;
struct mutex port_list_lock; /* protects port list */
bool fw_update_status;
u32 max_macs;
bool test1;
};
int nsim_dev_init(void);